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Dive into the research topics where Muhammad Aminul Islam is active.

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Featured researches published by Muhammad Aminul Islam.


international conference on control, automation and systems | 2008

Hysteresis modeling of magneto-rheological (MR) fluid damper by self tuning fuzzy control

Kyoung Kwang Ahn; Muhammad Aminul Islam; Dinh Quang Truong

Magneto-rheological (MR) fluid damper is a semi-active control device that has recently received more attention by the vibration control community. But inherent nonlinear hysteresis character of magneto-rheological fluid dampers is one of the challenging aspects for utilizing this device to achieve high system performance. So the development of accurate model is necessary to take the advantage their unique characteristics. Research by others has shown that a system of nonlinear differential equations can successfully be used to describe the hysteresis behavior of the MR damper. The focus of this paper is to develop an alternative method for modeling a damper in the form of centre average fuzzy interference system, where back propagation learning rules are used to adjust the weight of network. The inputs for the model are used from the experimental data. The resulting fuzzy interference system is satisfactorily represents the behavior of the MR fluid damper with reduced computational requirements. Use of the neuro-fuzzy model increases the feasibility of real time simulation.


Environmental Science: Processes & Impacts | 2015

Particle emissions from microalgae biodiesel combustion and their relative oxidative potential

M.M. Rahman; Svetlana Stevanovic; Muhammad Aminul Islam; Kirsten Heimann; Md. Nurun Nabi; George Thomas; Bo Feng; Richard J. Brown; Zoran Ristovski

Microalgae are considered to be one of the most viable biodiesel feedstocks for the future due to their potential for providing economical, sustainable and cleaner alternatives to petroleum diesel. This study investigated the particle emissions from a commercially cultured microalgae and higher plant biodiesels at different blending ratios. With a high amount of long carbon chain lengths fatty acid methyl esters (C20 to C22), the microalgal biodiesel used had a vastly different average carbon chain length and level of unsaturation to conventional biodiesel, which significantly influenced particle emissions. Smaller blend percentages showed a larger reduction in particle emission than blend percentages of over 20%. This was due to the formation of a significant nucleation mode for the higher blends. In addition measurements of reactive oxygen species (ROS), showed that the oxidative potential of particles emitted from the microalgal biodiesel combustion were lower than that of regular diesel. Biodiesel oxygen content was less effective in suppressing particle emissions for biodiesels containing a high amount of polyunsaturated C20-C22 fatty acid methyl esters and generated significantly increased nucleation mode particle emissions. The observed increase in nucleation mode particle emission is postulated to be caused by very low volatility, high boiling point and high density, viscosity and surface tension of the microalgal biodiesel tested here. Therefore, in order to achieve similar PM (particulate matter) emission benefits for microalgal biodiesel likewise to conventional biodiesel, fatty acid methyl esters (FAMEs) with high amounts of polyunsaturated long-chain fatty acids (≥C20) may not be desirable in microalgal biodiesel composition.


7TH BSME INTERNATIONAL CONFERENCE ON THERMAL ENGINEERING | 2017

Comparative evaluation of the effect of sweet orange oil-diesel blend on performance and emissions of a multi-cylinder compression ignition engine

S.M. Ashrafur Rahman; Faruque M. Hossain; Thuy Chu Van; Ashley Dowell; Muhammad Aminul Islam; Thomas J. Rainey; Zoran Ristovski; Richard J. Brown

In 2014, global demand for essential oils was 165 kt and it is expected to grow 8.5% per annum up to 2022. Every year Australia produces approximately 1.5k tonnes of essential oils such as tea tree, orange, lavender, eucalyptus oil, etc. Usually essential oils come from non-fatty areas of plants such as the bark, roots, heartwood, leaves and the aromatic portions (flowers, fruits) of the plant. For example, orange oil is derived from orange peel using various extraction methods. Having similar properties to diesel, essential oils have become promising alternate fuels for diesel engines. The present study explores the opportunity of using sweet orange oil in a compression ignition engine. Blends of sweet orange oil-diesel (10% sweet orange oil, 90% diesel) along with neat diesel fuel were used to operate a six-cylinder diesel engine (5.9 litres, common rail, Euro-III, compression ratio 17.3:1). Some key fuel properties such as: viscosity, density, heating value, and surface tension are presented. Engine performance (brake specific fuel consumption) and emission parameters (CO, NOX, and Particulate Matter) were measured to evaluate running with the blends. The engine was operated at 1500 rpm (maximum torque condition) with different loads. The results from the property analysis showed that sweet orange oil-diesel blend exhibits lower density, viscosity and surface tension and slightly higher calorific value compared to neat diesel fuel. Also, from the engine test, the sweet orange oil-diesel blend exhibited slightly higher brake specific fuel consumption, particulate mass and particulate number; however, the blend reduced the brake specific CO emission slightly and brake specific NOX emission significantly compared to that of neat diesel.In 2014, global demand for essential oils was 165 kt and it is expected to grow 8.5% per annum up to 2022. Every year Australia produces approximately 1.5k tonnes of essential oils such as tea tree, orange, lavender, eucalyptus oil, etc. Usually essential oils come from non-fatty areas of plants such as the bark, roots, heartwood, leaves and the aromatic portions (flowers, fruits) of the plant. For example, orange oil is derived from orange peel using various extraction methods. Having similar properties to diesel, essential oils have become promising alternate fuels for diesel engines. The present study explores the opportunity of using sweet orange oil in a compression ignition engine. Blends of sweet orange oil-diesel (10% sweet orange oil, 90% diesel) along with neat diesel fuel were used to operate a six-cylinder diesel engine (5.9 litres, common rail, Euro-III, compression ratio 17.3:1). Some key fuel properties such as: viscosity, density, heating value, and surface tension are presented. Engine pe...


Energies | 2013

Microalgal species selection for biodiesel production based on fuel properties derived from fatty acid profiles

Muhammad Aminul Islam; Marie Magnusson; Richard J. Brown; Godwin A. Ayoko; Md. Nurun Nabi; Kirsten Heimann


Fuel | 2015

Combustion analysis of microalgae methyl ester in a common rail direct injection diesel engine

Muhammad Aminul Islam; M.M. Rahman; Kirsten Heimann; Md. Nurun Nabi; Zoran Ristovski; Ashley Dowell; George Thomas; Bo Feng; Nicolas von Alvensleben; Richard J. Brown


Procedia Engineering | 2013

Influence of Fatty Acid Structure on Fuel Properties of Algae Derived Biodiesel

Muhammad Aminul Islam; Godwin A. Ayoko; Richard J. Brown; Doug Stuart; Kirsten Heimann


Journal of Mechanical Science and Technology | 2009

Modeling of a magneto-rheological (MR) fluid damper using a self tuning fuzzy mechanism

Kyoung Kwan Ahn; Dinh Quang Truong; Muhammad Aminul Islam


Energy Conversion and Management | 2015

Fuel characterisation, engine performance, combustion and exhaust emissions with a new renewable Licella biofuel

Nurun Nabi; Mostafizur Rahman; Muhammad Aminul Islam; Farhad M. Hossain; Peter Brooks; William N. Rowlands; John Tulloch; Zoran Ristovski; Richard J. Brown


Energy Conversion and Management | 2015

Investigation of the effects of the fatty acid profile on fuel properties using a multi-criteria decision analysis

Muhammad Aminul Islam; Richard J. Brown; Peter M. Brooks; M.I. Jahirul; Henning Bockhorn; Kirsten Heimann


Energy Conversion and Management | 2014

Effect of temperature and moisture on high pressure lipid/oil extraction from microalgae.

Muhammad Aminul Islam; Richard J. Brown; Ian M. O’Hara; Megan Kent; Kirsten Heimann

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Richard J. Brown

Queensland University of Technology

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Zoran Ristovski

Queensland University of Technology

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Ashley Dowell

Southern Cross University

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Godwin A. Ayoko

Queensland University of Technology

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Md. Nurun Nabi

Norwegian University of Science and Technology

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Farhad M. Hossain

Queensland University of Technology

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Ian M. O’Hara

Queensland University of Technology

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Bo Feng

University of Queensland

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